Ledger stand



Nov. 3', 1925' 1,559,

C. E. BROOKS LEDGER STAND Filed March 24, 1924 IN VEN TOR A TTORNE YS BYmr Patented Nov. 3, 1925.

UNITED STATES PATENT OFFICE.

LED GER STAND.

Application filed March 24, 1924. Serial No. 701,485.

To all whom it may concern.-

Be it known that I, CLYDE Evnnnr'i BROOKS, a citizen of the UnitedStates, and

a resident of Mason City, county of Cerro Gordo,'State ofIowa, haveinvented a new and useful Improvement in Ledger Stands, of which thefollowing is a full, clear, and exact description.

My invention relates to improvements in ledger stands, and moreparticularly to that type of stand which is adjustable as to height, andit consists in the combinations, constructions, and arrangements hereindescribed and claimed.

An object of my invention is to provide a ledger stand of the typedescribed by the use of which the necessity of lifting lodgers from onesupport to another is entirely obviated. Certain ledgers employed inofiices weigh in the neighborhood of fifty-five pounds, and are tooheavy and cumbersome to be lifted about freely, as in moving the ledgerfrom one side of a posting machine to the opposite side, and at adifferent height from the floor.

A further object of my invention is to provide a device of the typedescribed which will remain in its adjusted position and in which theplatform for supporting the ledger may be elevated or lowered with ease.

A further object of my invention is to provide a device of the typedescribed in which means for adjustment as to weight of the ledgersupported thereupon is provided.

A further object of my invention is to provide a ledger stand of thetype described in which means is provided for maintaining the platformin a stable condition at all times.

Other objects and advantages will appear in the following specification,and the novel features of the invention will be particularly pointed outin the appended claims.

My invention is illustrated in the accom" panying drawings forming partof this application, in which- Figure 1 is a front elevation of anembodiment of my invention, and

Figure 2 is a side elevation of the mechanism illustrated in Figure 1.

In carrying out my invention I make use of a base member 1 supportedupon suit-' able casters 2. A collapsible frame consisting of a pair .ofUshaped members 3 and 4, pivotally supported upon the base 1 at .5,

(see Figure 2) has pivotally connected thereto complementary frames 6and 7- respectively upon which the ledger platform 8 is supported. Thepivotal connection of the frames 3 and 6 and 4 and 7 is indicated at 9,(see Figure 1). The connection between the platform 8 and the upper ends10 of the frames 6 and 7 consists in a U-shaped hanger securedto theundersurface. of the platform 8, and pivotally connected at 12 with theadjacent ends 10 of the frames 6 and 7.

In order that the platform 8 may be stable at all times and not tiltupon its relatively narrow support 12l2, a pair of collapsible guidemembers 13 is provided and connected on each side of the frames 36 and3'7, (see Fig. 1). These collapsible guide members consist of a pair offrames 14: pivotally connected to one another by a hinge 15 pivotallyconnected at their ends by hinges 16 to blocks 17 secured to the underside of the platform 8 and tothe upper side of the base 1 respectively.The hinges 16 and 15 are sufficiently wide to prevent any tilting of theplatform 8, yet to not interfere inany way with the vertical elevationor lowering of the platform.

Resilient means for normally elevating the platform 8 is provided intension springs 18 secured at their uppermost ends to rods 19 carried bythe lowermost portions of the frames 6 and 7 respectively. The oppositeends of the tension springs 18 are connected to blocks 20 at theopposite sides of the base 1 to which the frames 6 or 7, connected withthe upper ends of the springs 18, are associated. These blocks 20 areprovided with a threaded bore therethrough, through which a shaft 21having right hand threads for the remaining block is disposed. The shaft21 is provided with a crank handle 24: by means of which the shaft maybe rotated to vary the tension of the springs 18.

From the foregoing description of the various parts of the device, theoperation thereof may be readily understood. Let us assume that a ledgeris placed upon the platform 8 and that it is desired to post thisledger. In posting the ledger it is preferable to place the ledger onthe right hand side of the posting machine and about 30 inches from thefloor. After the item has been posted, the entire stand is moved uponits casters 2 to the left hand side of the post ing machine for proving.In proving the ledger it is usually necessary to have the ledger higherfrom the floor, approximately 89 inches instead of 30. Heretofore it"has been necessary to lift the heavy ledger to a higher supportingsurface; \Vith my improved support, however it is merely necessary tolift up on the platform S/The springs 18 will assist in this movementand prexY ent collapse of the frames 36 and If the ledger is aparticularly heavy one, the tension of the springs 18 will be increased, While if it is a light one,"it maybe decreased. This increaseand decrease in the tension of the springs 18 is brought about byrotation of the shaft 21 by means of its crank 2 k.

1 claim:

1. A ledger stand of the characterddescribed comprising a base member, aledger supporting platform; a collapsible means comprising a pair offrames pivotally connected with one another and with said base memberand said ledger supporting platform respectively, spring meansassociated with said collapsible means for yieldinglyelevatingsaid'platform, and a pairof frames pivotally mounted to eachother and to said platform and sa1d base respectlvely, and

"having the-ir'axes disposed transverse to the axes of said collapsiblemeans, whereby said base member and said platform are maintainedsubstantially parallel at all times.

2. A ledger stand of the character de' scribed comprising a base member,a ledger supporting plat-form, a collapsible mea-ns comprismg'a pair'offrames pivotally con-- CLYDE nvnan'rrnnooris.

